KR102626787B1 - Smart power controller with zero line start function that solves all problems of input power - Google Patents

Abstract

The present invention includes an input unit (Input) where AC power is input and an output unit (Output) which outputs AC power; A switching unit 60 that supplies power between an input unit and an output unit (Output); A voltage detection unit 70 that outputs an input voltage and a reference voltage; And a control unit 10 that calculates the difference between the reference voltage of the voltage detection unit 70 and the input voltage and controls the switching unit 60 to cut off the power when it exceeds the set range. When an abnormal voltage is detected, the time interval of the set timer 150 is initialized, reset, and counted, and after the reset time interval is completed, the switching unit 60 is turned on based on the zero potential point of the AC sine waveform to energize the power. ; It includes a smart power controller with a zero-line start function that solves all problems with input power.

Description

Smart power controller with zero line start function that solves all problems with input power {SMART POWER CONTROLLER WITH ZERO LINE START FUNCTION THAT SOLVES ALL PROBLEMS OF INPUT POWER}

The present invention relates to a smart power controller with a zero-line start function that can solve all problems occurring in the input power, and more specifically, all problems occurring in the input power, namely overvoltage, low voltage, surge and peak voltage, and standby power. A power controller that can control the power automatically cuts off the incoming AC power whenever an unsafe overvoltage is detected. However, when the AC power voltage stabilizes again within a safe level, the load is reconnected and operates normally, using the potential difference of the electronic switch. The smart power controller and its control method can block the LED afterimage effect caused by low voltage, and even when standby power is cut off and surge or peak voltage flows into the input, it starts at 0° unconditionally after several tens of milliseconds to prevent inrush. It's about.

Recently, light emitting diodes (LEDs) have emerged as a promising market in the domestic lighting industry. Light-emitting diode lighting is receiving attention as part of efforts to save energy in advanced countries. Light-emitting diodes are in demand to replace the existing fluorescent lamp (FL) market, and LED lighting products that add sensibility and various multi-functions that are difficult to realize with existing fluorescent lamps are being introduced to the market.

Meanwhile, in the past, when more than a certain amount of current is supplied to the light emitting diode of a light emitting diode (LED) lighting device, not only the lifespan of the light emitting diode is shortened, but also the light emitting diode is damaged.

Accordingly, research on protection circuits to prevent damage from such abnormal power sources has been actively conducted, but no clear results have been achieved to date.

In addition, as the power source is used in combination with various devices, interference in the form of noise and peak voltage generated by peripheral devices using the same power source accelerates cracks in the devices, shortening their lifespan. There is a problem with shortening

For example, when overvoltage occurs from the AC input power line, a 380V overvoltage protection circuit is installed to protect against overvoltage. However, it is currently difficult to find products with an overvoltage protection circuit in the lighting industry, and due to the problem of rising costs, SCR and small-sized products are used. A protection circuit consisting of a condenser and a resistor is adopted. However, the overvoltage protection circuit using SCR does not recover even when normal power is applied until the charged condenser is completely discharged. In other words, there is an irrationality in that it operates again only after discharging is completed after turning it off. In addition, as soon as 380V is applied to the product, the internal pressure of the internal components is exceeded, so there are many cases where the components are already damaged.

In addition, wall switches these days do not simply have an on/off function, but electronic switches are mainly used that are equipped with displays such as the current weather, current internal temperature, and LED display lamps. At this time, regardless of whether the wall switch is on/off, current is required to drive the display or LED indicator lamp, and since a potential difference is generated accordingly, tens of volts are generated even when the switch is turned off, so the SMPS is used as a power source. A problem occurs when the circuit is recognized and driven, so the LED lamp is driven slightly and an afterimage occurs.

Additionally, in the past, overcurrent may occur, causing damage to the fuse or damage to components in the input and rectifier parts of the product. At this time, unless the fuse is designed to be removable, it must be replaced.

In addition, conventionally, in order to withstand surges of 4Kv or more, it can be improved by adding a surge absorber or surge protector separately to the input or using a varistor with a very large capacity. If the input is not filtered, the circuit part is damaged and sparks occur. It can happen.

In addition, conventionally, when an inrush current occurs, a situation in which an input peak occurs occurs very frequently, and the difference and damage are large depending on each phase angle of the AC power source, which can lead to product defects. That is, in the past, problems with product defects due to inrush current may occur.

In addition, conventionally, because standby power is consumed at about 1% of the rated power (ex: about 0.5W for 50W), standby power can be reduced only by physical shielding. That is, in the past, there was a problem of energy waste due to standby power.

KR 10-1436703 B1(2014.08.26)

The present invention was created to solve the above-described conventional problems. The purpose of the present invention is to provide a smart power controller with a zero line start function that solves all problems with input power.

The present invention may include the following examples to achieve the above object.

An embodiment of the present invention includes a smart power controller with a zero line start function that solves all problems of input power supplying power to the AC power line that supplies AC power to the load, and an input unit (Input) where AC power is input. An output unit that outputs AC power, a switching unit that conducts power between the input unit and the output unit, a voltage detection unit that outputs the input voltage and reference voltage, and a setting range by calculating the difference between the reference voltage and the input voltage of the voltage detection unit. It includes a control unit that controls the switching unit to cut off the power when an abnormal voltage is detected, and the control unit initializes the time interval of the set timer, resets it, and then counts it, and after the reset time interval is completed, the zero potential point of the AC sine waveform. It is possible to provide a smart power controller with a zero line start function that solves all problems with input power, which is characterized by turning on the switching unit to energize the power based on .

In the above embodiment, the control unit includes a zero potential detection module that detects a zero potential, an abnormal voltage detection module that detects an abnormal voltage by calculating the difference between the detection voltage and a reference voltage, and initializes a set time interval when the abnormal voltage is detected. , all problems with input power, including a timer that resets and counts, and a switching driver that turns on the switching unit based on the zero potential point according to the time interval calculated from the timer and turns off the switching unit when abnormal voltage is detected by the abnormal voltage detection module. It may include a smart power controller with a zero line start function that solves the problem.

In addition, the switching unit includes a first switching element and a second switching element, the base of the first switching element is connected to the control unit, a diode is connected to the input terminal in the forward direction toward the input side, and the second switching element has the input terminal connected to the output side. It is characterized by being connected in the forward direction.

In addition, the voltage detection unit may include a plurality of distribution resistors connected in series to distribute the input voltage below a set level, and a reference resistor installed on a power line branched from the power line to which the plurality of distribution resistors are connected to generate a reference voltage. You can.

Another embodiment according to the present invention is a control method of a smart power controller with a zero line start function that solves all problems of the input power that energizes or cuts off the power between the AC power line and the load, wherein a) the input AC power is A step in which the smoothed power is input and turned on through the diode of the smoothing unit and a plurality of resistors and capacitors, and b) when the time interval according to the set timer coefficient has elapsed, the first switching unit and the second switching unit are driven in synchronization with the zero potential point. a step of energizing the AC power supply, c) calculating the difference between the detection voltage and the reference voltage by detecting the voltage of the AC power line, and detecting an abnormal voltage through whether or not the set range is exceeded, and d) a step of detecting the abnormal voltage. When detected, the abnormal voltage of the positive (+) phase is turned off at the falling edge moving downward from the peak value, and the abnormal voltage of the negative (-) phase is turned off at the rising edge (EDGE) upward, and e) the abnormal voltage is detected. If so, initializing the set time interval and counting the time interval calculated by the reset time interval, f) detecting whether the abnormal voltage is normalized while counting the reset time interval, and g) resetting the time interval. When a normal voltage is detected until the counting is completed, all of the input power including the step of turning on the first switching unit and the second switching unit so that they turn on at the point when the positive phase changes from zero potential or the negative phase changes from zero potential. It may include a control method of a smart power controller with a zero line start function that solves the problem.

Therefore, unlike the existing method of configuring a protection circuit using a fuse, surge observer, surge protector, and large-capacity varistor, the present invention is capable of recovering and preventing product defects caused by sparks, damage to circuit parts, and input peaks. There is an effect.

Figure 1 is a circuit diagram showing a smart power controller with a zero line start function that solves all problems with input power according to the present invention.
Figure 2 is a block diagram showing the control unit of the present invention.
Figure 3 is a flowchart showing a control method of a smart power controller with a zero line start function that solves all problems with input power according to the present invention.
Figure 4 is a graph showing a waveform according to an embodiment of the present invention.

Although the present invention may be subject to various changes and may have various embodiments, specific embodiments will be described in detail by illustrating them in the drawings. This is not intended to limit the present invention to specific embodiments, and is not intended to limit the present invention to any of the changes, equivalents, or substitutes included in the spirit and scope of the present invention for connecting and/or fixing structures extending in different directions. It must be understood as applicable.

The terms used herein are only used to describe specific embodiments and are not intended to limit the invention. Singular expressions include plural expressions unless the context clearly dictates otherwise.

In this specification, terms such as “comprise” or “have” are intended to indicate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. It should be understood that it does not exclude in advance the existence or possibility of addition of elements, numbers, steps, operations, components, parts, or combinations thereof.

Hereinafter, a preferred embodiment of a smart power controller with a zero line start function that solves all problems with input power according to the present invention will be described in detail with reference to the attached drawings.

Figure 1 is a circuit diagram showing a smart power controller with a zero line start function that solves all problems with input power according to the present invention, and Figure 2 is a block diagram showing the control unit of Figure 1.

Referring to Figures 1 and 2, the present invention includes a control unit 10 that cuts off power when overvoltage is detected, an input unit through which AC power is input, an output unit outputting AC power, and a control unit 10. ), a switching unit 60 that switches and energizes the power under the control of ), a smoothing unit 20 that smoothes the AC power, a voltage detection unit 70 that outputs the input voltage and a reference voltage, and a timer 150. It may include a setting unit 30 for setting, and a first clamping unit 40 and a second clamping unit 50 for clamping the current level.

The input and output are connected to the AC power line. In other words, the smart power controller with a zero-line start function that solves all problems with input power according to the present invention detects abnormal power of AC power between electronic devices (e.g., lighting devices) on the AC power line and turns the power on. It is characterized by blocking.

The smoothing unit 20 is provided with a plurality of resistors and a smoothing capacitor connected in parallel to the input unit (Input) to stabilize the input voltage input through the input unit (Input) and supply it to the control unit 10. The power supplied from the smoothing unit 20 is input to the power supply pin of the control unit 10 and is turned on.

The switching unit 60 cuts off or energizes AC power under the control of the control unit 10. For example, when the control unit 10 detects an abnormal power source (e.g., overvoltage, surge voltage), the switching unit 60 is turned off by the control signal to switch between the input unit and the output unit. Shut off the power line.

Here, the switching unit 60 may include a first switching element (Q1) and a second switching element (Q2). The first switching element (Q1) and the second switching element (Q2) are turned on or off by a control line connected to the drive pin of the control unit 10. Here, the base of the first switching element (Q1) is connected to the control unit 10, the diode is connected to the input terminal in the forward direction to the input side, and the second switching element (Q2) has the input terminal connected in the forward direction to the output side (Output). It may be an IGBT connected to . Here, the input terminals of the first switching element (Q1) and the second switching element (Q2) are connected to the first clamping unit (40) and the second clamping unit (50).

The first clamping unit 40 and the second clamping unit 50 include resistors (RCR1, RCE2) and capacitors (CRC1, CRC2) and clamp the current at a set level. In addition, the first clamping unit 40 and the second clamping unit 50 may include a plurality of resistors that are respectively connected to the input pin and output pin of the control unit 10 to divide the voltage. That is, resistors Rin1, Rin2, and Ron3 are installed on the input pin of the control unit 10, and Rout1, Rout2, and Rout3 are installed on the line connected to the output pin.

The first clamping part 40 and the second clamping part 50 are used to maintain a waveform for detecting a zero-crossing point where the AC phase angle is 0 in the AC sine waveform.

The voltage detection unit 70 may include a plurality of distribution resistors (Rsns1, Rsns2, and Rsns3) connected in series to distribute the input voltage below a set level, and a reference resistor (Rsref) that generates a reference voltage.

The reference resistor (Rsref) is branched from the power line to which the distribution resistors (Rsns1, Rsns2, and Rsns3) are connected and installed on the power line connected to the comparator pin of the control unit 10.

Distribution resistors (Rsns1, Rsns2, Rsns3) are connected to the sensing pin of the control unit 10.

Therefore, the voltage detection unit 70 outputs the detection voltage and the reference voltage through the sensing pin and the comparator pin, respectively, and the control unit 10 can detect the overvoltage by calculating the difference.

The setting unit 30 includes a first external capacitor (Ct) connected between the timer pin and the GND pin of the control unit 10, and a second external capacitor (Csref) connected to the line from the voltage sensing unit 70 to the GND pin. ) may include. Among them, the first external capacitor (Ct) is a delay circuit, and is sequentially raised and lowered between 0.3 and 3.7 V by the pull-up current and pull-down current of the control unit 10, for example, necessary for calculating the timer coefficient (e.g. For example, it provides a delay (time constant) value of 47pF ± 20% required for counting the time interval between starting or restarting from the zero potential point.

For example, when an abnormal voltage (overvoltage) is detected in the AC power input from the input unit, the control unit 10 turns the power on at the point when the phase angle changes from positive to negative and from negative to positive based on the zero potential. It protects connected electronic and electrical products by blocking, and when the voltage stabilizes, it restarts at the AC phase angle O° (zero potential point or zero-crossing point) and always synchronizes when the voltage on both ends of the AC switch is 0, thereby minimizing inrush current. You can.

Here, the control unit 10 includes a zero potential detection module 110 that detects a zero potential, a switching driver 120 that controls the switching unit 60, an abnormal voltage detection module 130 that detects an abnormal voltage, and a zero voltage detection module 130 that detects an abnormal voltage. It includes a timer 150 that calculates the above and a driving module to which power is input.

The zero potential detection module 110 detects the zero potential in the waveform clamped by the first clamping unit 40 and the second clamping unit 50 through the input pin and output pin. Here, the zero potential detection module 110 detects the positive phase in the sine waveform input through a plurality of resistors (Rin1, Rin2, Rin3) connected in series through an input pin, and a plurality of resistances (Rin1, Rin2, Rin3) connected in series through an output pin. The negative phase of the input sine wave can be detected through the resistances (Rout1, Rout2, Rout3).

Here, the plurality of resistors (Rin1, Rin2, Rin3, Rout1, Rout2, Rout3) are external resistances of the input pin/output pin and are preferably selected in the range of 2.2MΩ to 3.3MΩ.

For example, if the current clamping level exceeds 1mA in a power line of AC 90~400V, 50Hz~60Hz, a voltage of 2kV or more may be generated. To accommodate such overvoltage, it is desirable to set the external resistance value of the input pin/output pin to 2.2MΩ ~ 3.3MΩ.

The switching driver 120 selectively or simultaneously turns on or off the first switching unit 60 and the second switching unit 60 based on the zero potential detected by the zero potential detection module 110. In addition, the switching driver 120 turns off the switching unit 60 when an abnormal voltage is detected according to the detection result of the abnormal voltage detection module 130, and when a normal voltage is detected, the zero potential detection signal of the zero potential detection module 110 Accordingly, the switching unit 60 is driven to energize the connected AC power line.

The abnormal voltage detection module 130 detects an abnormal voltage. Here, the abnormal voltage detection module 130 compares the input voltage input through the voltage detection unit 70 and the reference voltage and generates an abnormal voltage detection signal when the difference exceeds a set range (for example, ±1.5V). Print out.

That is, the abnormal voltage detection module 130 calculates the presence or absence of an abnormal voltage by calculating the difference between the detected voltage input through the voltage detection unit 70 and the reference voltage input through the comparator pin.

At this time, the sensing voltage is connected to the input unit (Input) and the distributed voltage through a plurality of resistors (RSNS1, RSNS2, RSNS3) connected in series is divided with the power line to which the reference resistor (RSREF) is connected and input to the sensing pin. .

The timer 150 calculates a timer 150 coefficient for calculating the zero potential. For example, the timer 150 starts operation when the input voltage is within a set voltage level, and this also applies to the initial power-on state and the recovery state after overvoltage. Here, the total duration of the timer 150 may be determined by the external capacitor (Csref) of the setting unit 30.

For example, timer 150 includes an internal pull-down current of 9uA followed by a pull-up current of 9uA, which can sequentially increase an external capacitor (Csref) between 3.7V and 0.3V and back to 3.7V. This continues for 1024 cycles to generate a total timer 150 coefficient of 0.8 seconds/nF, and the timer 150 equation is shown in Equation 1 below.

[Equation 1]

Interval (sec) = # cycles x Vramp x 2 x CT (F) / Iramp

= 1024 x 3.4 x 2 x CT (F) / 9u = 0.774 sec/nF

Here, the timer 150 may count or initialize a set time period according to the detection result of the abnormal voltage detection module 130 and then restart.

For example, if an abnormal voltage is generated during the timer 150 interval in the abnormal voltage detection module 130, the timer 150 initializes the current time progressed in the set time period and starts counting again. This reset of the timer 150 interval is performed until the voltage stabilizes to a starting voltage within a set level.

The present invention includes the above configuration, and hereinafter, a control method of a smart power controller with a zero line start function that solves all problems of input power according to the present invention achieved through the above configuration will be described.

FIG. 3 is a flowchart showing a control method of a smart power controller with a zero line start function that solves all problems with input power according to the present invention, and FIG. 4 is a graph showing waveforms according to an embodiment of the present invention.

Referring to Figures 3 and 4, the present invention includes a step S110 for turning on, a step S120 for detecting and switching a zero potential, a step S130 for detecting an abnormal voltage, a step S140 for turning off when an abnormal voltage is detected, and a timer (150). ) includes a step S150 of initializing and resetting, a step S160 of detecting whether the abnormal power is normalized, and a step S170 of detecting and switching the zero potential.

Step S110 is a step in which the control unit 10 is turned on by the input voltage. The control unit 10 receives alternating current (AC) power input through an input unit (Input) connected to the AC power line through the diode (Dvcc) of the smoothing unit 20, a plurality of resistors (RVCC1 to RVCC3), and a capacitor (CVCC). It turns on when power is input through the power supply pin.

In step S120, the control unit 10 is synchronized with the first detected zero potential point (a in Figure 4) after the time period (CT) according to the set timer 150 coefficient has elapsed and sends a drive signal (DRV) through the drive pin. This is the step of outputting and driving the first switching unit 60 and the second switching unit 60. Therefore, the switch controller outputs output to loads (for example, lighting equipment) connected to the AC power line.

Step S130 is a step in which the control unit 10 detects an abnormal voltage. Here, the abnormal voltage detection module 130 detects the abnormal voltage when the difference between the detected voltage of the voltage detection unit 70 and the set reference voltage exceeds the set range. This occurs when the peak value in the VLNE waveform of FIG. 4 exceeds the reference value OVP+VE and the reference value OVP+VE in the VLOAD waveform. Here, the VLINE waveform is a graph measuring the waveform of the AC power line, and the VLOAD waveform is the output side voltage, that is, input through external resistors (Rin1, Rin2, Rin3, Rout1, Rout2, Rout3) connected to the input pin/output pin of the control unit. Corresponds to the waveform of the signal.

The VCC waveform is the waveform input to the power supply pin of the control unit, and DRV is the driving signal of the first and second switching units output from the drive pin by the switching driver. CT is a waveform that roughly shows the time interval calculated from the timer.

Step S140 is a step in which the control unit 10 turns off the AC power line when an abnormal voltage is detected. When an abnormal voltage is detected, the control unit 10 turns off the first switching unit 60 and the second switching unit 60 to block the AC power line (see reference numeral b or c in FIG. 4).

Here, the switching driver 120 can turn off the first switching unit 60 and the second switching unit 60 based on the zero potential point of the zero potential detection module 110.

For example, when the switching driver 120 detects an abnormal voltage (e.g., overvoltage), the positive phase overvoltage produces a falling edge (EDGE) downward from the peak value, and the negative phase overvoltage produces an upward edge. Turn it off at EDGE.

Step S150 is a step in which the control unit 10 initializes the counting of the timer 150. The control unit 10 initializes and resets the time interval set based on the time when an abnormal voltage is detected. And the timer 150 counts the time interval calculated by the reset timer coefficient.

Step S160 is a step in which the control unit 10 detects whether the abnormal voltage is normalized while counting the time interval at which the timer 150 is reset. The control unit 10 detects that the abnormal voltage has normalized if the difference between the detection voltage detected through the abnormal voltage detection module 130 and the reference voltage is maintained within the set range for a time period within the reset time interval. do.

Alternatively, if an abnormal voltage is detected while counting the reset time interval, the control unit 10 re-processes step S150. This process can be repeated until the input voltage is normalized.

If normalization is maintained until the counting of the reset time interval is completed, step S170 is the first step to be turned on at the point when the zero potential changes from the positive (+) phase or the zero potential to the negative (-) phase. This is the step of turning on the switching unit 60 and the second switching unit 60.

Therefore, the present invention can synchronize the AC switch based on the zero potential. In addition, the present invention can be turned on in the positive rising section of the zero potential point when the timer 150 interval calculated by the timer 150 coefficient reset after the occurrence of overvoltage is completed. At this time, if an abnormal voltage occurs during the reset time interval, the time interval is reset again and waits until the next full cycle returns to the normalized voltage.

That is, in the present invention, when an abnormal voltage occurs, the time progressed to date among the set time intervals is initialized and counting begins again. This resetting of the time interval is performed until the voltage stabilizes to a starting voltage within the set level.

Therefore, in the present invention, when the AC power voltage stabilizes again to a safe level, the load is reconnected and operates normally, thereby blocking the LED afterimage effect caused by low voltage due to the potential difference of the electronic switch.

In addition, the present invention detects the voltage of the AC power line and can directly cut off or energize, so it is possible to block standby power, and even if surge or peak voltage flows into the input, it unconditionally starts at 0° after several tens of ms to prevent rush. can do.

In addition, the present invention, unlike the existing method of configuring a protection circuit using a fuse, surge observer, surge protector, and large-capacity varistor, allows recovery and prevents product defects caused by sparks, damage to circuit parts, and input peaks. can

In the above, preferred embodiments of the present invention have been shown and described, but the present invention is not limited to the specific embodiments described above, and can be used in the technical field to which the invention pertains without departing from the gist of the present invention as claimed in the claims. Of course, various modifications can be made by those skilled in the art, and these modifications should not be understood individually from the technical idea or perspective of the present invention.

10: control unit
20: smooth part
30: Setting section
40: first clamping part
50: second clamping part
60: switching unit
70: voltage detection unit
110: Zero potential detection module
120: switching driver
130: Abnormal voltage detection module
140: driving module
150: Timer

Claims (9)

An input unit where AC power is input and an output unit which outputs AC power,
A switching unit 60 that supplies power between an input unit and an output unit (Output);
A voltage detection unit 70 that outputs an input voltage and a reference voltage; and
When an abnormal voltage exceeding the set range is detected by calculating the difference between the reference voltage and the input voltage of the voltage detection unit 70, the switching unit 60 is controlled to cut off the power, and the set timer 150 is set. A control unit 10 that initializes the interval, resets it, counts it, and turns on the switching unit 60 based on the zero potential point of the AC sine wave form to energize the power after completing the reset time interval;
The control unit 10 is
A zero potential detection module 110 that detects a zero potential;
An abnormal voltage detection module 130 that detects an abnormal voltage by calculating the difference between the detection voltage and the reference voltage;
A timer 150 that initializes a set time interval when an abnormal voltage is detected and resets and counts; and
A switching driver 120 that turns on the switching unit based on the zero potential point according to the time interval calculated by the timer 150 and turns off the switching unit 60 when the abnormal voltage detection module 130 detects an abnormal voltage; Including,
The voltage detection unit 70 is
A plurality of distribution resistors (Rsns1, Rsns2, Rsns3) are connected in series to distribute the input voltage below the set level, and are installed on a power line branched from the power line to which the plurality of distribution resistors (Rsns1, Rsns2, Rsns3) are connected. Containing a reference resistance (Rsref) that generates a voltage; A smart power controller with a zero-line start function that solves all problems with input power.
delete In claim 1, the switching unit 60 is
Equipped with a first switching element (Q1) and a second switching element (Q2),
The base of the first switching element (Q1) is connected to the control unit 10, the diode is connected to the input terminal in the forward direction toward the input side, and the second switching element (Q2) has the input terminal connected in the forward direction to the output side. being connected; A smart power controller with a zero-line start function that solves all problems with input power.
delete In claim 1, the setting unit 30 is
A first external capacitor (Ct) connected to the timer pin connected to the timer 150 of the control unit 10, and a power line extending from the voltage detection unit 70 to the switching unit 60 of the control unit 10 are installed. Includes a second external capacitor (Csref),
The first external capacitor (Ct) is a delay circuit that sequentially rises and falls between 0.3 and 3.7 V by the pull-up current and pull-down current of the control unit 10, and is necessary for starting or restarting from the zero potential point when calculating the coefficient of the timer 150. A smart power controller with a zero-line start function that solves all problems with input power, featuring a delay (time constant) value of 47pF ± 20%.
In claim 1, the switching driver 120 is
When an abnormal voltage is detected by the abnormal voltage detection module 130, the power supply is supplied at the point when the phase angle changes from positive (+) to negative (-) or from negative (-) to positive (+) based on the zero potential (Z). blocking the voltage, and when the voltage is stabilized and changes to positive or negative phase at the zero potential point of the AC power supply, driving the switching unit 60 to energize the power; A smart power controller with a zero-line start function that solves all problems with input power.
In claim 1,
The zero potential detection module 110 detects the positive phase in a sine waveform input through a plurality of resistors (Rin1, Rin2, Rin3) connected in series through an input pin, and a plurality of resistors (Rin1, Rin2, Rin3) connected in series through an output pin. Detects the negative phase in the sine wave input through (Rout1, Rout2, Rout3),
A plurality of resistors (Rin1, Rin2, Rin3, Rout1, Rout2, Rout3) are selected from the range of 2.2MΩ to 3.3MΩ; A smart power controller with a zero-line start function that solves all problems with input power.
delete delete

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